| Popular official stamp | 22 |
| Popular one-named singer | 24 |
| Popular online lectures | 23 |
| Popular online magazine | 23 |
| Popular online reference | 24 |
| Popular operating system | 24 |
| Popular origami sculpture | 25 |
| Popular ornamental tree | 23 |
| Popular pain relief brand | 25 |
| Popular pain relief cream | 25 |
| Popular painkiller, for short | 29 |
| Popular painting scene | 22 |
| Popular palate cleanser | 23 |
| Popular palindrome center | 25 |
| Popular palindrome ending | 25 |
| Popular pants in the '70s | 29 |
| Popular pants since 1850 | 24 |
| Popular party appetizers? | 25 |
| Popular party day: Abbr. | 24 |
| Popular pastime in Iceland | 26 |
| Popular pasturage grass | 23 |
| Popular Paul Dresser song | 25 |
| Popular PBS science series | 26 |
| Popular PC game of the 1990s | 28 |
| Popular PC shooting game | 24 |
| Popular peanut butter candy | 27 |
| Popular peer-to-peer service | 28 |
| Popular pet food brand | 22 |
| Popular pets, for short | 23 |
| Popular photo-hosting site | 26 |
| Popular pie ingredient | 22 |
| Popular piece by Beethoven | 26 |
| Popular pizzeria chain | 22 |
| Popular place for a puzzle | 26 |
| Popular place for a tattoo | 26 |
| Popular place for a tattoo? | 27 |
| Popular place to go downhill | 28 |
| Popular place to hang out | 25 |
| Popular place to socialize | 26 |
| Popular plant "pet" | 29 |
| Popular player since 2001 | 25 |
| Popular pledge drive gift | 25 |
| Popular pledge-drive gift | 25 |
| Popular Polynesian port | 23 |
| Popular Pontiac of the past | 27 |
| Popular pop, familiarly | 23 |
| Popular pop-up prohibitor | 25 |
| Popular poplar in puzzles | 25 |
| Popular post-holiday project | 28 |
| Popular potato chip maker | 25 |
| Popular poultry entree | 22 |
| Popular powdered candy | 22 |
| Popular pre-marathon meal | 25 |
| Popular pre-weekend acronym | 27 |
| Popular program recorder | 24 |
| Popular programming language | 28 |
| Popular pudding ingredients | 27 |
| Popular purchase in the 1950s | 29 |
| Popular purveyor of stromboli | 29 |
| Popular radio personality | 25 |
| Popular radio series: 1930-45 | 29 |
| Popular rave drug, briefly | 26 |
| Popular reading since 1923 | 26 |
| Popular reality show, to fans | 29 |
| Popular reception feature | 25 |
| Popular reference work | 22 |
| Popular reliever of aches | 25 |
| Popular resort outside Boston | 29 |
| Popular resort, briefly | 23 |
| Popular restaurant fish | 23 |
| Popular retirement spot | 23 |
| Popular rock group, for short | 29 |
| Popular rock makeup product | 27 |
| Popular rock singer Gloria | 26 |
| Popular rock/rap/funk group | 27 |
| Popular Roman parlor game? | 26 |
| Popular salad ingredient | 24 |
| Popular sandwich choice | 23 |
| Popular sandwich cookie | 23 |
| Popular sandwich filler | 23 |
| Popular sandwich option | 23 |
| Popular sandwich, briefly | 25 |
| Popular sandwich, for short | 27 |
| Popular sandwich, informally | 28 |
| Popular sans-serif choice | 25 |
| Popular sans-serif font | 23 |
| Popular school trip site | 24 |
| Popular sci-fi video game | 25 |
| Popular science magazine | 24 |
| Popular science writer | 22 |
| Popular Scotch, familiarly | 26 |
| Popular screen android | 22 |
| Popular scripting language | 26 |
| Popular sea menaces of film | 27 |
| Popular seafood selection | 25 |
| Popular season on the Riviera | 29 |
| Popular seek-and-find series | 28 |
| Popular serving in France | 25 |
| Popular setting for a wedding | 29 |
| Popular shaving lotion | 22 |